john-jumbo: fix build with clang under superenv

Fixes Homebrew/homebrew#26531.

Formula/john-jumbo.rb

@@ -9,8 +9,12 @@ class JohnJumbo < Formula
 
   def patches
     [
-     DATA, # Taken from MacPorts, tells john where to find runtime files
-     "http://www.openwall.com/john/g/john-1.7.9-jumbo-7.diff.gz" # Jumbo
+      "http://www.openwall.com/john/g/john-1.7.9-jumbo-7.diff.gz", # Jumbo
+      # First patch taken from MacPorts, tells john where to find runtime files
+      # Second patch protects against a redefinition of _mm_testz_si128 which
+      # tanked the build in clang;
+      # see https://github.com/Homebrew/homebrew/issues/26531
+      DATA
     ]
   end
 
@@ -19,11 +23,6 @@ class JohnJumbo < Formula
     cause "Don't remember, but adding this to whitelist 2336."
   end
 
-  fails_with :clang do
-    build 425
-    cause "rawSHA1_ng_fmt.c:535:19: error: redefinition of '_mm_testz_si128'"
-  end
-
   def install
     ENV.deparallelize
     arch = MacOS.prefer_64_bit? ? '64' : 'sse2'
@@ -78,3 +77,17 @@ __END__
  #endif
  #define JOHN_PRIVATE_HOME		"~/.john"
  #endif
+
+diff --git a/src/rawSHA1_ng_fmt.c b/src/rawSHA1_ng_fmt.c
+index 5f89cda..6cbd550 100644
+--- a/src/rawSHA1_ng_fmt.c
++++ b/src/rawSHA1_ng_fmt.c
+@@ -530,7 +530,7 @@ static void sha1_fmt_crypt_all(int count)
+ 
+ #if defined(__SSE4_1__)
+ 
+-# if !defined(__INTEL_COMPILER)
++# if !defined(__INTEL_COMPILER) && !defined(__clang__)
+ // This intrinsic is not always available in GCC, so define it here.
+ static inline int _mm_testz_si128 (__m128i __M, __m128i __V)
+ {